KR101123306B1 - Washing control method of washing machine - Google Patents

Abstract

The washing control method of the washing machine according to the present invention is advantageous in that the washing performance can be improved by washing the washing water by a small amount after first compressing and washing the water, and secondly washing the water by additionally supplying water.

Washing machine, washing, bulk detection, detergent, water, concentrated washing, additional water supply, main washing

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

1 is an internal configuration diagram of an example of a conventional washing machine,

FIG. 2 is a flowchart showing a washing control method of a conventional washing machine,

3 is a flowchart illustrating a washing control method of a washing machine according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing control method for a washing machine, and more particularly, to a washing control method for washing a washing machine by supplying a small amount of water,

Generally, a washing machine is a device for removing contaminants from garments, bedding, etc. (hereinafter referred to as porosity) by using the action of water and detergent, and is widely known as an agitator type, a pulsator type, ) Washing machine.

In the agitating type, the washing rods rising in the center of the washing tub are washed by rotating the washing rods to the left and right. The swirl type washing is performed by using the frictional force between the water stream and the washing water, A drum protruding from the lifter is rotatably disposed, and washing water, detergent and laundry are put into the drum, and the drum is rotated to wash the drum.

The washing machine includes a washing process for removing contamination of the cloth with water dissolved in detergent (hereinafter referred to as washing process), a rinsing process for rinsing the foam with clean water containing no detergent (hereinafter, referred to as rinsing process) And a dehydration step such as centrifugal dehydration, wherein the washing performance of the cloth is determined according to the solubility of the detergent.

1 is an internal configuration diagram of an example of a conventional washing machine.

1, the conventional washing machine includes a base 1, an outer case 2 disposed on the upper side of the base 1, (4) which is rotatably disposed inside the outer tub (4) and has a plurality of through holes formed on its side surface, and a laundry blade (6) is installed on the bottom of the outer tub (4) And a motor 9 disposed below the outer tank 6 and generating a driving force for rotationally driving the rotary vane 6 or the inner tank 8. The inner tank 8 is rotatably arranged in the inner tank 8, .

A top cover 11 is mounted on the upper side of the outer case 2.

The top cover 11 is formed with a catch and release hole 11a and a hinge 12 for opening and closing the catch and release hole 11a.

The top cover 11 is provided with a water supply valve 14 connected to the outer hose 13 for interrupting the water supplied from the outside and a water supply valve 14 for guiding the water passing through the water supply valve 14 to the inner tank 4 And a detergent container 16 provided in the detergent container housing 15 and equipped with a detergent storage part A so that the water passing through the water supply valve 14 can be washed away together with the detergent is mounted do.

A drain valve 18 is attached to a lower portion of the outer tank 4 and a drain hose 20 extending to the outside of the outer case is connected to the drain valve 18.

A water level sensing device 30 is connected to the outer tank 4 to sense the level of wash water or rinse water.

The water level sensing device 30 includes an air chamber 32 installed at the lower side of the outer tank 4 and filled with air whose pressure rises according to the level of the wash water and the wash water in the outer tank 4, A lower end of the chamber cap 34 is connected to an upper portion of the air chamber 32 and an upper end of the chamber cap 34 is connected to the top cover 14, And a water level sensor 38 for sensing an air pressure in the water level sensing tube 36 and sensing a water level is connected to an upper end of the water level sensing tube 36. [ ).

The washing machine further includes a power transmission device 40 for selectively supplying the driving force of the motor 9 to the rotary vane 6 and the inner tank 8. [

The power transmission device 40 includes a hollow dehydrating shaft connected to the lower end of the inner tank 8, a washing shaft rotatably disposed inside the dehydrating shaft and connected to the lower end of the washing blade 6, A coupling for engaging / disengaging the washing shaft, and a clutch motor for operating the coupling.                         

The clutch motor disengages the dehydrating shafts and the washing shafts so that only the washing shafts and the rotary shafts 6 are rotated during the washing or rinsing stroke, and the rotary shafts 6 and the inner shafts 8 are rotated So that the dehydrating shrinkage and the washing shafts are engaged.

The washing machine determines a water supply level and a time according to an operation command inputted by the user and an amount of the blanket charged into the inner tank 8 and controls the water supply valve 14, the motor 9, the clutch motor, And a control unit 48 for controlling the control unit 18.

The operation of the conventional washing machine constructed as described above will be described below.

2 is a flowchart showing a washing control method of a conventional washing machine.

The water level sensing device 30 is connected to the water level sensing device 30 so that the water level sensing device 30 can be installed in the inner tank 8. When the water level sensing device 30 receives the operation commands such as washing / rinsing / dewatering, The control unit 48 detects the amount of the laundry and outputs a signal according to the detection result to the controller 48. The controller 48 determines a water supply amount and a washing time according to the detected laundry amount,

Then, the detergent is put in. (S2)

The control unit 48 turns on the water supply valve 14 so that water can be supplied through the external hose 13 and water in the external hose 13 passes through the water supply valve 14, The detergent in the detergent storage part A is supplied to the interior of the inner tank 8 while being dissolved in the water supplied.

The washing control method of the washing machine turns off the water supply valve 14 when the water level sensed by the water level sensing device 30 reaches a water supply amount corresponding to the sensed discharged water amount.                         

Then, the washing control method of the washing machine performs the main washing by turning on the motor 9 during the washing time according to the detected laundry amount. (S4)

After the washing time, the motor 9 is turned off and the drain valve 18 is turned on to drain the contaminated water in the outer tub 4 to the outside of the washing machine. )

Thereafter, the washing machine proceeds to the next stroke according to the inputted driving command (S6)

That is, if a rinse cycle is inputted, new water is supplied to the inner tank 8 and rinsed for a set number of times, then the water used for rinsing is drained to the outside of the washing machine, Rotate the bubble to centrifugal dehydrate.

However, in the washing control method of the conventional washing machine, since the detergent is dissolved in water and supplied in the inner tank together with the water through one water supply, and the detergent is washed in a large amount of water, There is a problem that the limit is followed.

In addition, since the detergent in the detergent container 16 is swept down only once by the water supply, the residual detergent tends to remain in the detergent container 16, and the washing performance is deteriorated due to the lack of detergent .

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a washing control method of a washing machine capable of improving washing performance by water washing, The purpose is to provide.

Another object of the present invention is to minimize the amount of residual detergent in the detergent container by allowing the water to be supplied to the detergent dispenser a plurality of times, so that a certain amount of detergent is input.

According to another aspect of the present invention, there is provided a washing control method for a washing machine, comprising: a first step of detecting a discharged amount and determining an amount of water supplied according to a discharged amount; A second step of performing a first washing by supplying a small amount of water after the first step; And a third step of performing a second washing by supplying additional water after the second step.

Further, the second step is characterized by supplying 1/3 or less of the water amount determined in the first step.

The second step is characterized by watering the set amount.

The first washing is characterized in that the bag is squeezed onto the inner wall of the inner tank, and the water containing the detergent is circulated and pumped into the inner tank through the bag.

In the third step, water other than the amount of water supplied in the second step among the amount of water determined in the first step is further added.

Also, the second washing is performed at a time or a speed determined by the detection of the amount of the laundry in the first step.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flowchart illustrating a washing control method of a washing machine according to the present invention.

As shown in FIG. 3, the washing control method of the washing machine according to the present invention senses the amount of the cloth contained in the inner tub 8 and determines the amount of water supply and the washing time according to the detected laundry amount (S11)

The determination of the amount of water and the determination of the amount of water supply and the washing time will be described in more detail as follows.

In the detection of the quantity, the clutch motor is operated so that the rotary vane 6 and the inner tank 8 are rotated when the motor 9 is driven, thereby connecting the dehydrating axis and the washing axis.

Then, the time required for one rotation of the motor 9 is measured, and a value proportional to the required time is calculated as a sensed mass.

When the motor 9 reaches the set RPM of the motor 9, the motor 9 is accelerated so as to reach the set RPM of the motor 9 without calculating the detected RPM, The motor 9 is controlled at a constant speed and the motor 9 is turned off when the set time has elapsed after the motor is controlled at the constant speed and the pulse width modulation PWM from the start of the motor 9 to the motor 9 is turned off, It is of course possible to calculate the sum of the values obtained by multiplying the average value of the duty values by the proportional constant and the values obtained by multiplying the rotation angle of the available rotation after the motor 9 is turned off by the proportional constant.

When the sensed quantity is calculated as described above, the calculated sensed quantity is inputted into a predetermined table or a predetermined mathematical expression to determine the water supply amount, the washing time, and the detergent. (S12)

The water supply valve 14 is turned on so that water is supplied through the external hose 13 and water that has passed through the water supply valve 14 flows along with the detergent in the detergent storage unit A Water is supplied into the inner tank 8, and the detergent gradually dissolves in water.

At this time, the water supplied as described above is supplied with a small amount of water without concentrating the entire amount of water according to the sensed amount of the water, so that the detergent is concentrated into water. (S13)

It is also possible to supply a predetermined amount of water (for example, 20 L) to the small amount of water supply, and it is also possible to supply water of 1/3 or less of the amount of water according to the amount of water detected in the discharge amount detection. And one third of the water amount according to the detected amount of water is limited to the water amount.

That is, when the level of the wash water sensed by the water level sensing device 30 reaches the first predetermined level, the water supply valve 14 is turned off.

Here, the first predetermined water level is a water level at which 1/3 of the water amount according to the detected amount of water is supplied.

Then, the inner tank 8 is rotated as in the squeezing / circulating operation for a first washing time (for example, 3 minutes) corresponding to the detected laundry amount (S14)

The motor 9 is driven at high speed in one direction or in both directions in a state in which the clutch motor connects the dewatering shaft and the washing shaft.

The bubble in the inner tank 8 is attached to the wall surface of the inner tank 8 by the high speed rotation of the inner tank 8. When the water in which the detergent is concentrated in the inner tank 8 passes through the bubble attached to the inner wall of the inner tank 8 Crimped washing is done.

The water with the detergent permeated through the cloth is raised to the upper part between the outer wall surface of the inner tank 8 and the inner wall surface of the outer tank 4 by the high speed rotation of the inner tank 8, Pumping is circulated or is circulated through the circulation flow path formed separately on the inner wall of the inner tank 8 and circulated in the inner tank 8, and the above process is repeated. (S14)

When the circulating detergent is concentrated, the solubility of the detergent increases as the pumping proceeds, and the concentrated water is compressed into the foam to increase the separation of the foam and the contamination.

On the other hand, after the small amount of water and the washing of the water and the circulation of the concentrated water of the detergent, the water addition amount other than the water amount of the small amount water supply (that is, two thirds of the water amount according to the water amount) . (S15)

The washing machine turns the water supply valve 14 on again so that water is re-supplied through the external hose 13 and new water passing through the water supply valve 14 passes through the detergent container 16, Is supplied into the inner tank (8) together with the residual detergent in the inner tank (A).

The washing machine turns off the water supply valve (14) when the level of the wash water sensed by the water level sensing device (30) reaches the second predetermined water level.

Here, the second set water level is a water level when all of the water supply amount according to the detected amount of water is supplied.

The water newly supplied into the inner tank 8 is mixed with the concentrated water in the inner tank 8, and the controller controls the second washing time (for example, 10 minutes) determined according to the sensed volume, The motor 9 is turned on at a speed determined according to the detected amount of laundry during the main washing (S16)

At this time, when the motor 9 is turned on, the control unit operates the clutch motor to rotate only the rotating blades 6 without rotating the inner tank 8, thereby releasing the dehydrating shafts and the washing shafts.

The washing machine rotates the rotary vane 6 to the left and right to wash the water using the friction force of the water stream and the vinegar, and turns off the motor 9 when the second washing time elapses.

Then, the control unit turns on the drain valve 18 to drain the contaminated water in the outer tub 4 to the outside of the washing machine (S17)

Thereafter, the washing machine proceeds to the next stroke (S18)

The washing control method of the washing machine according to the present invention having the above-described structure is characterized in that washing water is firstly squeezedly washed after a small amount of water is supplied, and water is further watered to perform secondary washing, .

In addition, the washing control method of the washing machine according to the present invention is advantageous in that water is supplied to the detergent dispenser a plurality of times to minimize the residual detergent in the detergent dispenser and to inject a predetermined amount of detergent.

Claims (6)

A first step of detecting a replenishment amount and determining an amount of water supplied according to the replenishing amount; A second step of supplying a water amount smaller than the water amount determined in the first step together with the detergent; After the second step, the bag is squeezed on the inner wall of the inner tank, the water dissolved in the detergent permeates through the bag, and is raised upward along the space between the outer wall surface of the inner tank and the inner wall surface of the outer tank, A third step of performing washing; A fourth step of additionally supplying washing water to the water supply amount determined in the first step after the third step; And And a fifth step of performing a second washing after the fourth step. The method according to claim 1, Wherein the second step supplies water equal to or less than 1/3 of the water amount determined in the first step. The method according to claim 1, Wherein the second step is to supply a set amount of water. delete delete The method according to claim 1, Wherein the second washing is performed at a time or a speed determined according to the amount of laundry sensed in the first step.

Images